16917305320 has 64 divisors (see below), whose sum is σ = 38819250000. Its totient is φ = 6632890368.

The previous prime is 16917305311. The next prime is 16917305333. The reversal of 16917305320 is 2350371961.

It can be written as a sum of positive squares in 8 ways, for example, as 2775814596 + 14141490724 = 52686^2 + 118918^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16917305320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2644686 + ... + 2651074.

Almost surely, 2^16917305320 is an apocalyptic number.

16917305320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16917305320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19409625000).

16917305320 is an abundant number, since it is smaller than the sum of its proper divisors (21901944680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16917305320 is a wasteful number, since it uses less digits than its factorization.

16917305320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7702 (or 7698 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The spelling of 16917305320 in words is "sixteen billion, nine hundred seventeen million, three hundred five thousand, three hundred twenty".